A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
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Mark direction of rotation of drive belt with chalk or felt tip pen.
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Remove drive belt.
Installing (adjusting valve timing)
Note:
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Even with repairs which require the drive belt to be removed only from the camshaft sprocket, the drive belt adjustment must be performed as
follows.
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When rotating the camshaft the crankshaft must not be at TDC for any cylinder. Risk of damaging valves/piston crown.
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Place drive belt on crankshaft sprocket (observe direction of rotation).
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Install lower part of drive belt cover.
Note: The vibration damper/pulley can be installed in only one position. The hole (arrow) in the vibration damper must be located over the raised part
on the crankshaft drive belt sprocket.
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Tighten vibration damper/pulley, take note of locating point (arrow).
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Align camshaft sprocket-to-cylinder head cover positioning marks and vibration damper-to-drive belt cover positioning marks.
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Install drive belt in this order: water pump, tensioning pulley, camshaft sprocket.
Tensioning drive belt
If the drive belt tensioner is completely extended:
CAUTION:
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If the drive belt tensioner is at its travel limit, it must be pushed back in the installed position together with the pulley. This procedure can take up
to 5 minutes.
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When compressing the tensioner, excessive force can damage the tensioning pulley.